Eruption, Grisaire Supplement (5e Spell)
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|Casting time:||1 action|
|Components:||V, S, M (a shard of volcanic glass)|
Explosive power coalesces into a fragment of volcanic glass within your fingers, preparing to erupt with the force of a volcano. Make a melee spell attack against a creature within your reach. On a hit, the target takes 3d6 fire damage. Hit or miss, the shard then explodes with volcanic energy. The target and each creature within a 15 foot cone must succeed on a Dexterity saving throw or take 3d6 fire damage.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the explosion's damage increases by 1d6 for each slot level above 2nd.